1/* { dg-do compile } */
2/* { dg-require-effective-target ia32 } */
3/* { dg-skip-if "" { *-*-* } { "-march=*" } { "-march=i486" } } */
4/* { dg-options "-O2 -march=i486" } */
5
6void
7foo (unsigned long long *p)
8{
9  unsigned long long tmp;
10  tmp = *p;
11  tmp = (tmp >> 32) | (tmp << 32);
12  tmp = (((tmp & 0xff00ff00ff00ff00ULL) >> 8)
13	 | ((tmp & 71777214294589695ULL) << 8));
14  *p = (((tmp & 0xffff0000ffff0000ULL) >> 16)
15	| ((tmp & 281470681808895ULL) << 16));
16}
17
18/* { dg-final { scan-assembler-times "bswap" 2 } } */
19